Muffler.



J. M@ MIGHAELSON.

MUFFLER.

APPLICATION FILED JUNE 5, 1911.

Patented Sept. 17, 1912.

5 OLJuX .ffizsese si. mmssmsosr. es Mmsmlmoms, mimrsse'm.

MUFELEB.

v osss M. MmHAs-L lis, ennepn county", Mn Certain sew an use 'e'ts im Muiers, of which the e.. soso.' ation.

' omy invention is is@ rovce visive muffe? *50s ges engines 'eich the e sie Wi se oom-- us path heisse he to the to the be en.-

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Patented Sept. 1;?, 1912.

.fx-55e ojeen st sash. emi and their spira er lfsngement 'o'lms eompaatveiy ong, oiseuitous passages through the pipe 5 so that by the time the gas reaches the discharge and of the pipe 5 the exhaust W be oom;- pets silenced, 'the gas becoming cooe 7 :owing out at the shage emi o the ssujas and the ppe without causing the fmgosions generaly midents to the dis# ehasgs of the exhaust into ne atmosphere.

'is the operation of the de* ies. elle exhaust W enter the explosion chamber and from ':henee mss 'imo the ipe following the 'Walls of the sp... Ly eoilef `Lubes und ehzfough the tubes themselves unt the discharge sud of the exhaust n?. e is reached. The ength of this pipe :m tle number of cois of 'ehe spirals may 'be varied until the dese 'result is obtained.

A. muer eomprflsing am expansion. cham ber, an exhaust pipe lleadng therefrom and having open ends, tubes twxsted together to form a spiral ttn Within said pipe and sso having open en s, the Wals of said' pi e being spaced fromV sind tubes io eHow t e passageI of the exhaust through said tubes or through the s ace between said tubes anc Jfhs wail of sai. pipeA and out at the discharge end of said pi e.

In Witness Where() I have hereunto set my hand this 31st' day of May, 1911.

JSEPH M. MIGHAELSON.'

Witnesses:

GENEVIEVE E. SGRENSEN, EDWARD A. PAUL. 

